Improvement in the manufacture of rubber rolls



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JOHN GREAOEN, JR., AND EDWARD L. PERRY,.OF NEW YORK, N. Y. AS- SIGNORSTO COMBINATION RUBBER COMPANY, OF SAME PLACE.

Letters Patent No. 111,449, dated January 31, 1871.

IMPROVEMENT IN THE MANUFACTURE OF RUBBER ROLLS.

The Schedule referred to In these Letters Patent and making part of thesame.

1b all whom it may concern Be it known that we, JOHN GREAGEN, Jr., andEDWARD L. PERRY; of the city, county, and State of New York, haveinvented a new and useful Improvement in Rubber Rolls and we do `herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawing and to theletters of reference marked thereon making a part of this specification.

The object of this invention is to construct elastic rolls forwringing-machines, and other purposes, in such manner as will prevent'the elastic material from rendering or turningaround the shaft orspindle, and at the same time, build up the rolls so that they will notbreak or tear apart, and yet preserve their elasticity undercompression, pressure, or use.

In the several processes heretofore used this has been but imperfectlyaccomplished, for, in some instances, the roll will render around theshaft, while the body of the roll remains tenacious, and in others theroll will not render on the shaft, but the body of the roll will breakor tear.

In our invention both of these objections are fully obviated, as willappear from the following description in connection with theaccompanying drawing, wherein- Figure 1 represents a side view oi' ourroll partially in section.

Figure 2, a transverse section oi' the same.

Figures 3 and 4, plan views, showing the construction of the materialol' which the body of our roll is composed.

Similar letters of reference indicate corresponding parts in the severalfigures.

A represents a shalt or spindle B represents the cord;

C represents the filling or body; and

D, the finished surface of the roll.

To construct our roll a shaft, A, of any suitable material or size, isprovided, around which is tightly wound the cord B. To make this cordmore tightly adhere, the surface of the shaft may rst be covered withany suitable cement, if' desired, the cord then being covered withcement.

A strip of rubber, u, oi' any required width, having cords b b runningparallel with its length, (sce iig. 3,) is now wound sph-ally orotherwise around the cord B, (see iig. 1,) until the desired diameter isobtained, when the finishing surface I) of rubber is applied, and theroil is ready for vulcanization, after which all the several partsforming said roll will be found tightly cemented together, making onesolid and compact body.

lnstcadoi' increly aixing the cords b b to the surface of the rubbcr,said cords may be placed between two sheets of rubber, which will add tothe strength of the body of the roll, by causing each successive turn orlayer around the roll to adhere more firmly to the other, or, .insteadof using merely parallel cords, as above described, a net-work oil cords(see iig. 4) may be used and applied in precisely the same way and forthe saine purpose; and, instead oi' winding the strips thus formedspil-ally around the shaft, said strips may bc cut on the hi-as, whenthe saine result will be obtained as it they were wound sph-ally.

From the foregoing it will be seen that the body of our rolls is huiltup of alternate strips oi' rnfbber and cords or corded fabric, therubber, when vulcanized, combining the whole into a compact,self-sustaining body, eiectuaily preventing the rolls from tearing'apart or turning on the shait.

Having thus described our invention,

What we claim as new, and desire to secure b v Letters Patent, ii-

Au elastic roll, made by first winding cord B directly upon the shaft,.then wrapping the saine with a filling fabric composed oi' rubber (tand cords b, and covering the whole with a surfacing of rubber l), theseveral parts being formed into a compact mass by vulcanization,substantially as herein described. for the purposes specified.

JOHN GREAUEN, JR. EDWARD L. PERRY.

Witnesses H. L. WATTENBERG, G. M. PLYMPTON.

